CN1624382A - Water cooling wall of circular flow boiler - Google Patents
Water cooling wall of circular flow boiler Download PDFInfo
- Publication number
- CN1624382A CN1624382A CNA2004100960411A CN200410096041A CN1624382A CN 1624382 A CN1624382 A CN 1624382A CN A2004100960411 A CNA2004100960411 A CN A2004100960411A CN 200410096041 A CN200410096041 A CN 200410096041A CN 1624382 A CN1624382 A CN 1624382A
- Authority
- CN
- China
- Prior art keywords
- water cooling
- water
- cooling wall
- circular flow
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention relates to a water cooling wall of circular flow boiler, which reduces the diameter of the water cooling pipe inside the water cooling wall to reduce the area of the water cooling wall to prevent wearing on the water cooling wall connecting with the heat-insulating material resulted from the particle pair from water cooling wall of the burner. The invention provides a water cooling wall of circular flow boiler, characterized in that the heat-insulating material (6) sticks to the inner side of the circular flow boiler(1), and the boiler(1) is enclosed by water cooling wall (2). The upright water cooling pipe (3) on the heat-insulating material (6) connects with water cooling pipe (4)of smaller diameter on the interface of the heat-insulating material (6) and water cooling wall (2), therefore the area of the water cooling wall (2) is reduced to make the particles in the boiler(1) descend apart from the water cooling wall (2), thus the wearing of the water cooling wall (2) is reduced.
Description
Technical field
The present invention relates to a kind of water cooling wall of circular flow boiler, relate in particular to a kind of water cooling wall of circular flow boiler, it is by dwindling the diameter of cooling tube on the interface of the heat-insulating material of circular flow boiler inside and water cooling wall, and make the reduced cross-sectional of water cooling wall, so that particle is dropped into part and water cooling wall apart from each other, thereby reduce the wearing and tearing of water cooling wall.
Background technology
In general, for wearing and tearing and the burning that prevents combustion furnace, the combustion furnace bottom surface of circular flow boiler has heat-insulating material in the inboard of its water cooling wall.The combustion furnace of these circular flow boilers at high temperature produces flow velocity and fierce mixing rapidly, so it is very big to produce the possibility of wearing and tearing.And the interface portion of water cooling wall and heat-insulating material has phase layer in vertical direction, and the particle of dropping into behind the imperfect combustion is piled up after can falling described phase layer.In addition, the air by from the bottom up flows and changes the direction of particle, itself and water cooling wall collision is produced impact, so cause the wearing and tearing on water cooling wall surface.If fuel is solid particle, then its degree of wear will be more serious, produce the mortality influence more.
For addressing the above problem, imagined in the past and make the perpendicular shape phase layer that between heat-insulating material and cooling wall, forms have gradient or have certain curvature, be deposited in the corner with the solid that prevents to drop into, and directly drop into the bottom surface from above.But, because described heat-insulating material has certain thickness, so heat-insulating material can come off from the thin part that tilts.
Summary of the invention
For solving above-mentioned problem in the past the present invention is proposed.The water cooling wall that the purpose of this invention is to provide a kind of circular flow boiler, it is by the water composite cooling pipe undergauge with water cooling wall inside, and make the reduced cross-sectional of water cooling wall, the water cooling wall that links to each other with heat-insulating material with the abrasion of particles that prevents from above the water cooling wall of circular flow boiler combustion furnace, to drop into, thus the wearing and tearing of particle reduced to water cooling wall.
For achieving the above object, the invention provides a kind of water cooling wall of circular flow boiler, it is characterized in that, heat-insulating material is sticked on the lower inside of the combustion furnace of circular flow boiler, and described combustion furnace by water cooling wall round, and on the interface of described heat-insulating material and water cooling wall, vertical water cooling tube above the heat-insulating material is linked to each other with the water composite cooling pipe that diameter diminishes, make the water cooling wall reduced cross-sectional, so that the particle in the combustion furnace is dropped into part and water cooling wall apart from each other, thereby reduce the wearing and tearing of water cooling wall.
Description of drawings
Fig. 1 is the following sectional view of the combustion furnace of fluidized bed boiler of the present invention.
Fig. 2 be among Fig. 1 with the vertical water cooling tube and the water composite cooling pipe that is connected therewith, center line is consistent with it and diameter diminishes of water cooling wall, utilize sheet material welded structure figure.
Fig. 3 be among Fig. 1 with the vertical water cooling tube of water cooling wall be connected therewith, after center line is consistent with it and diameter diminishes once more hole enlargement to the water composite cooling pipe of vertical cooling tube size, the structure chart that utilizes sheet material to connect continuously.
Fig. 4 be among Fig. 1 with the vertical water cooling tube and the water composite cooling pipe that is connected therewith, center line is consistent with it and diameter diminishes of water cooling wall, the structure chart that utilizes sheet material to connect continuously.
Fig. 5 be among Fig. 1 with the vertical water cooling tube of water cooling wall be connected therewith, after center line is consistent with it and diameter diminishes once more hole enlargement to the water composite cooling pipe of vertical cooling tube size, the structure chart that utilizes sheet material to connect continuously.
Fig. 6 be among Fig. 1 with the vertical water cooling tube of water cooling wall be connected therewith, be alignment and the water composite cooling pipe that have only inboard undergauge of benchmark with the outermost outline line, the structure chart that utilizes sheet material to connect continuously.
Fig. 7 be among Fig. 1 with the vertical water cooling tube of water cooling wall be connected therewith, with the outermost outline line be the benchmark alignment and have only behind the inboard undergauge once more that the center line with vertical cooling tube is the water composite cooling pipe interconnective structure chart of benchmark hole enlargement to vertical cooling tube size.
Fig. 8 be among Fig. 1 with the vertical water cooling tube of water cooling wall be connected therewith, with the outermost outline line be the benchmark alignment and have only behind the inboard undergauge once more that the outermost outline line with vertical cooling tube is the water composite cooling pipe interconnective structure chart of benchmark hole enlargement to vertical cooling tube size.
Description of reference numerals
1: the combustion furnace 2 of circular flow boiler: water cooling wall 3: vertical water cooling tube
4: the water composite cooling pipe 5 of undergauge: the water composite cooling pipe 6 of hole enlargement: heat-insulating material
7: sheet material 8: water composite cooling pipe
The specific embodiment
Describe composition of the present invention and embodiment in detail below in conjunction with accompanying drawing.
Fig. 1 is the following sectional view of the combustion furnace 1 of fluidized bed boiler of the present invention.Utilization comprises that the water cooling wall 2 of water composite cooling pipe 8 round the fluidized bed boiler combustion stove 1 that is used for combustion fuel, sticks on heat-insulating material 6 on the certain altitude of described water cooling wall 2.
For wear-resistant and high temperature resistant, described heat-insulating material 6 has certain thickness, so heat-insulating material 6 has vertical phase layer with the interface portion of water cooling wall 2, the particle of dropping into after the burning will be deposited on the described phase layer, and flow by air from the bottom up, make described particle and water cooling wall 2 collisions, cause the wearing and tearing of water cooling wall 2.
In order to prevent the wearing and tearing of above-mentioned water cooling wall 2, the present invention links to each other with the water composite cooling pipe 4 that diameter diminishes by being positioned at fluidized bed boiler combustion stove 1 following heat-insulating material 6 top water composite cooling pipes, make the reduced cross-sectional of water cooling wall 2, make the part and water cooling wall 2 apart from each others dropped into from fluidized bed boiler combustion stove 1 inner crest face particle, thereby reduce the wearing and tearing of water cooling wall 2.
The preferred embodiments of the present invention are described as follows.
Embodiment 1
As shown in Figure 2, on the interface of described heat-insulating material 6 and vertical water cooling tube 3, the water composite cooling pipe 4 that vertical water cooling tube 3 and diameter are diminished links to each other, make particle on the heat-insulating material 6 in fluidized bed boiler combustion stove 1 drop into part and be away from water cooling wall 2, utilize sheet material 7 that the water composite cooling pipe 4 of described vertical water cooling tube 3 and undergauge is welded together, wherein make the central shaft of water composite cooling pipe 4 of the central shaft of described vertical water cooling tube 3 and undergauge consistent with each other.
Embodiment 2
As shown in Figure 3, on the interface of described heat-insulating material 6 and vertical water cooling tube 3, the water composite cooling pipe 4 that vertical water cooling tube 3 and diameter are diminished links to each other, make the central shaft of water composite cooling pipe 4 of the central shaft of described vertical water cooling tube 3 and undergauge consistent with each other, afterwards the water composite cooling pipe 4 of undergauge is interconnected with and hole enlargement consistent with the central shaft of vertical cooling tube 3 water composite cooling pipe 5 to the hole enlargement of vertical cooling tube 3 diameter, utilize sheet material 7 that the water composite cooling pipe 4 of described vertical water cooling tube 3 and undergauge is welded together.
As shown in Figure 4, on the interface of described heat-insulating material 6 and vertical water cooling tube 3, the water composite cooling pipe 4 that vertical water cooling tube 3 and diameter are diminished links to each other, utilize sheet material 7 that described vertical water cooling tube 3 is connected continuously with the water composite cooling pipe 4 that dwindles, wherein the central shaft with described vertical water cooling tube 3 is connected continuously with the central shaft of the water composite cooling pipe 4 of undergauge.
As shown in Figure 5, on the interface of described heat-insulating material 6 and vertical water cooling tube 3, the water composite cooling pipe 4 that vertical water cooling tube 3 and diameter are diminished links to each other, make the central shaft of water composite cooling pipe 4 of the central shaft of described vertical water cooling tube 3 and undergauge consistent with each other, afterwards the water composite cooling pipe 4 of undergauge is interconnected with and hole enlargement consistent with the central shaft of vertical cooling tube 3 water composite cooling pipe 5 to the hole enlargement of vertical cooling tube 3 diameter, utilize sheet material 7 that the water composite cooling pipe 4 of described vertical water cooling tube 3 and undergauge is connected continuously.
As shown in Figure 6, on the interface of described heat-insulating material 6 and vertical water cooling tube 3, the water composite cooling pipe 4 that vertical water cooling tube 3 and diameter are diminished links to each other, utilize sheet material 7 that described vertical water cooling tube 3 is connected continuously with the water composite cooling pipe 4 that dwindles, wherein said water composite cooling pipe 4 is that the external diameter with described vertical water cooling tube 3 outsides is that benchmark links to each other, and only dwindles inboard external diameter.
As shown in Figure 7, on the interface of described heat-insulating material 6 and vertical water cooling tube 3, the water composite cooling pipe 4 that vertical water cooling tube 3 and diameter are diminished links to each other, wherein said water composite cooling pipe 4 is that the external diameter with described vertical water cooling tube 3 outsides is that benchmark links to each other, only dwindle inboard external diameter, water composite cooling pipe 5 with hole enlargement links to each other with the water composite cooling pipe 4 of described undergauge afterwards, utilizes sheet material 7 that the water composite cooling pipe 4 of described vertical water cooling tube 3 and undergauge is connected continuously.
The diameter of the water composite cooling pipe 5 of described hole enlargement is identical with vertical cooling tube 3, and its central shaft is consistent with the central shaft of the water composite cooling pipe 4 of described undergauge.
As shown in Figure 8, on the interface of described heat-insulating material 6 and vertical water cooling tube 3, the water composite cooling pipe 4 that vertical water cooling tube 3 and diameter are diminished links to each other, wherein said water composite cooling pipe 4 is that the external diameter with described vertical water cooling tube 3 outsides is that benchmark links to each other, only dwindle inboard external diameter, water composite cooling pipe 5 with hole enlargement links to each other with the water composite cooling pipe 4 of described undergauge afterwards, utilizes sheet material 7 that the water composite cooling pipe 4 of described vertical water cooling tube 3 and undergauge is connected continuously.
The water composite cooling pipe 5 of described hole enlargement is that the external diameter with cooling tube 4 outsides of undergauge is a reference connection, only enlarges inboard external diameter, and described welding is owing to utilize smooth sheet material, thus can easily process and weld, and material requested is less when connecting continuously.
The present invention with said structure, because the particle of combustion furnace 1 inside is dropped into part and water cooling wall 2 apart from each others, thus can reduce the collision impact of the mobile particle that causes of air to water cooling wall 2, thus the wearing and tearing of water cooling wall 2 reduced.
In addition, because the water composite cooling pipe 4 of described undergauge and the water composite cooling pipe 5 of hole enlargement are reconnected, so can reduce the changes of section of water cooling wall 2 as far as possible, prevent that the flow velocity of fluidized bed boiler combustion stove 1 inside that water cooling wall 2 reduced cross-sectional cause is too fast, reduce the internal pressure loss.
The present invention is not limited to above preferred embodiment, does not break away from the relevant personnel of protection domain of the present invention in described field and all can realize the numerous variations embodiment, and these changes are included in the described protection domain.
As mentioned above, by said structure and effect, the present invention can realize the water cooling wall breakage that prevents that surface wear causes under the fluidized bed boiler combustion stove, reduce time-based maintenance and replacing problem, reduce the water cooling wall running that causes of breaking and stop accident, steady running be can realize, and maintenance and upkeep cost reduced, very useful.
Claims (5)
1, a kind of water cooling wall of circular flow boiler, it is characterized in that, heat-insulating material (6) is sticked on the lower inside of circular flow boiler combustion furnace (1), and described combustion furnace (1) by water cooling wall (2) round, and on the interface of described heat-insulating material (6) and water cooling wall (2), vertical water cooling tube (3) above the heat-insulating material (6) is linked to each other with the water composite cooling pipe (4) that diameter diminishes, make water cooling wall (2) reduced cross-sectional, so that the particle in the combustion furnace (1) is dropped into part and water cooling wall (2) apart from each other, thereby reduce the wearing and tearing of water cooling wall (2).
2, the water cooling wall of circular flow boiler according to claim 1 is characterized in that, the water composite cooling pipe (4) of described undergauge is linked to each other with the water composite cooling pipe (5) of hole enlargement to vertical cooling tube (3) size.
3, the water cooling wall of circular flow boiler according to claim 1 and 2, it is characterized in that, consistent the linking to each other of central shaft of the water composite cooling pipe of described undergauge (4) and vertical cooling tube (3), or be benchmark and only dwindle inboard external diameter and link to each other with the external diameter in described vertical water cooling tube (3) outside.
4, the water cooling wall of circular flow boiler according to claim 2 is characterized in that, the water composite cooling pipe of described hole enlargement (5) is that the external diameter in water composite cooling pipe (4) outside with described undergauge is a benchmark and continuous, and only enlarges inboard external diameter.
5, according to the water cooling wall of claim 1 or 4 described circular flow boilers, it is characterized in that, utilize sheet material (7) that described vertical water cooling tube (3) is connected once continuously with the water composite cooling pipe (4) of undergauge or be welded to connect.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0088335 | 2003-12-06 | ||
| KR1020030088335A KR20050055265A (en) | 2003-12-06 | 2003-12-06 | Water-cooled walls in a fluidized bed reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1624382A true CN1624382A (en) | 2005-06-08 |
Family
ID=34793154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100960411A Pending CN1624382A (en) | 2003-12-06 | 2004-11-26 | Water cooling wall of circular flow boiler |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20050055265A (en) |
| CN (1) | CN1624382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870384A (en) * | 2018-04-28 | 2018-11-23 | 东南大学 | The burning of low nitrogen burning circulating fluidized bed boiler and SNCR denitration cooperative optimization method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712205B (en) * | 2014-01-10 | 2015-10-28 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of Circulating Fluidized Bed Hot Water Boiler preventing wearing and tearing and corrode |
| CN106152116B (en) * | 2016-08-05 | 2019-11-22 | 华电电力科学研究院 | A kind of wear-resistance circulation fluidized bed boiler combustion chamber water-cooling wall |
| CN106224946B (en) * | 2016-09-18 | 2018-10-30 | 广西秀美壮乡能源环保有限公司 | A kind of wear-resistance circulation fluidized bed boiler |
-
2003
- 2003-12-06 KR KR1020030088335A patent/KR20050055265A/en not_active Application Discontinuation
-
2004
- 2004-11-26 CN CNA2004100960411A patent/CN1624382A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870384A (en) * | 2018-04-28 | 2018-11-23 | 东南大学 | The burning of low nitrogen burning circulating fluidized bed boiler and SNCR denitration cooperative optimization method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050055265A (en) | 2005-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1957204A (en) | Method and device for the separation of dust particles | |
| CN1624382A (en) | Water cooling wall of circular flow boiler | |
| CN205762285U (en) | Defecator for thermal power plant's material add-on system | |
| CN204699540U (en) | A kind of filter with distribution of gas function | |
| CN101566341A (en) | Exponential flow-resisting frame used for reducing abrasion of circulating fluidized bed boiler water-cooling wall | |
| CN1511797A (en) | Process for producing mineral wool granular cotton and its hot air system | |
| CN201141005Y (en) | Suspending board type internal barrel of preheater | |
| CN1302855C (en) | Cooling type high temperature gas solid separation device | |
| RU2556656C1 (en) | Wet cleaning of flue gases of solid and toxic elements | |
| CN102853423B (en) | The anti-wearing method of circulating fluidized bed boiler water-cooling wall pipe | |
| CN2619156Y (en) | Incinerator of combustable gas | |
| CN207907245U (en) | A kind of anti-coking structure of secondary combustion chamber | |
| CN202884341U (en) | Combined type wear-resisting discharging bend | |
| CN202061495U (en) | Air purification and filtration device of air/gas completely premixed combustion boiler | |
| CN2895880Y (en) | Internal chain-piece chain with projected lining sleeve | |
| JP2018508739A (en) | Residual heat boiler | |
| CN206814001U (en) | Powder-granule material Geldart-D particle elbow | |
| CN2654562Y (en) | Multiturning elbow for delivering fast speed liquid | |
| CN2776983Y (en) | 2.8 meter internal diameter water gas producer | |
| CN110748879B (en) | Smooth slag discharging device for enhancing inlet of slag discharging pipe of 300MW circulating fluidized bed boiler and installation method | |
| CN2752615Y (en) | Internal air film circumferential air type pulverized coal burner | |
| CN202195219U (en) | Wear resistant elbow | |
| CN210772137U (en) | Armor formula hangs protector of pipe | |
| CN214182173U (en) | Wear-resisting structure of flue gas pipeline | |
| CN111085049B (en) | Dust removal separation device with center bent and biased air outlet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |